﻿/*
 * ZOMBIZ ActionScript 3 Framework
 * 
 *                     _     _     
 *  _______  _ __ ___ | |__ (_)____
 * |_  / _ \| '_ ` _ \| '_ \| |_  /
 *  / / (_) | | | | | | |_) | |/ / 
 * /___\___/|_| |_| |_|_.__/|_/___|
 * 
 *
 * Licensed under the MIT License
 * 
 * Copyright (c) 2010 La Haute Société
 * 
 * Permission is hereby granted, free of charge, to any person obtaining a copy of
 * this software and associated documentation files (the "Software"), to deal in
 * the Software without restriction, including without limitation the rights to
 * use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of
 * the Software, and to permit persons to whom the Software is furnished to do so,
 * subject to the following conditions:
 * 
 * The above copyright notice and this permission notice shall be included in all
 * copies or substantial portions of the Software.
 * 
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, FITNESS
 * FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR
 * COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER
 * IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
 * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
 */

package com.zombiz.display.loader.visualprogress

{
	import flash.display.DisplayObject;
	import flash.display.MovieClip;
	import flash.errors.IllegalOperationError;
	import flash.events.ProgressEvent;
	import flash.utils.getQualifiedClassName;
	
	/**
	 * Classe abstraite, encapsule les comportement communs aux visualprogress
	 * @author Pascal Achard
	 * @since 18 avril 2011
	 * @version 1.0.0
	 */
	
	
	public class AVisualProgress extends MovieClip implements IVisualProgress
	{
		public function AVisualProgress()
		{
			super ();
			if (getQualifiedClassName(this) == "display.visualprogressclasses::AVisualProgress") {
				throw new Error ("Cette classe est abstraite et ne peut être instanciée");
			}
			setProgress(0);
		}
		
		/**
		 * Ecoute le progression de téléchargement.
		 * @param	e
		 */
		final public function progressEventHandler (e:ProgressEvent):void {
			setProgress (e.bytesLoaded / e.bytesTotal);
		}
		
		/**
		 * Méhode abstraite
		 * @param	pRatio
		 */
		public function setProgress (pRatio:Number):void {
			
			throw new Error ("Cette méthode est abstraite et doit être redéfinie dans les sous-classes");
		}
		
		public function get displayObject():DisplayObject
		{
			return this;
		}
		
	}
	
}